We've recently run into this error message followed by whatever email address we enter for the From variable.
"Mailer Error: Language string failed to load: from_failed".
Funny thing is that the code written to send these emails has been used on the server before, and can currently be used on our localhosts. We are using the SMTP server from our internet provider. The error message seems quite a strange result. Note that we are using an older version of phpMailer, but we did try installing the newest version, but kept getting authentication errors. Again this doesn't make sense because we can send the emails from our localhosts. I'm begining to think that it has something to do with the servers. Maybe the environment has changed, our server provider maybe put up a firewall that's blocking partial communication to our internet provider? At this point I'm grasping at straws and hoping they can find some reason for the issue. Has anybody ever encountered anything like this? Any help would be greatly appreciated.